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Problem with loops
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Hi,
I'm working in a 4x4 sudoku solver and i'm a beginner in c++.
I use Microsoft Visual Studio 6.0 and windows xp professional
Variables are:
a1 b1 c1 d1
a2 b2 c2 d2
a3 b3 c3 d3
a4 b4 c4 d4
First i wrote that program
It works but sometimes it reach absurd situations like this:
1 4 2 3
3 4
4 1
2 !
When that happens program stops and don't show the solced variables in that case a1=1 b1=4 c1=2 d1=3 a2=3 a3=4 a4=2 d2=4 d3=1
In order to solve that i've writen another code with a loop that doesn't stop the program until the last variable to be evaluated (c3) is not 0.
I've post it here:
First the loop seemed work but later i noticed it reach these absurd situacions too.
Anyone know why? i've no idea what's wrong
thank you
I'm working in a 4x4 sudoku solver and i'm a beginner in c++.
I use Microsoft Visual Studio 6.0 and windows xp professional
Variables are:
a1 b1 c1 d1
a2 b2 c2 d2
a3 b3 c3 d3
a4 b4 c4 d4
First i wrote that program
C++ Syntax (Toggle Plain Text)
It works but sometimes it reach absurd situations like this:
1 4 2 3
3 4
4 1
2 !
When that happens program stops and don't show the solced variables in that case a1=1 b1=4 c1=2 d1=3 a2=3 a3=4 a4=2 d2=4 d3=1
In order to solve that i've writen another code with a loop that doesn't stop the program until the last variable to be evaluated (c3) is not 0.
I've post it here:
C++ Syntax (Toggle Plain Text)
First the loop seemed work but later i noticed it reach these absurd situacions too.
Anyone know why? i've no idea what's wrong
thank you
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Join Date: Aug 2005
Posts: 15,171
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>>Microsoft Visual Studio 6.0
That's your first mistake. Unless you are required to use that compiler by your school you should scrap that compiler because of its age and known NON-compilance with c++ standards. You can get a pretty good free VC++ 2005 Express compiler that will let you code most everything you will learn in school and text books.
Why in the world are you using all those variables ? I thought you are supposed to be learning matrices, such as one declared like this ? That will greatly simplify your code because you only have to deal with ONE variable, not 16.
That's your first mistake. Unless you are required to use that compiler by your school you should scrap that compiler because of its age and known NON-compilance with c++ standards. You can get a pretty good free VC++ 2005 Express compiler that will let you code most everything you will learn in school and text books.
Why in the world are you using all those variables ? I thought you are supposed to be learning matrices, such as one declared like this ? That will greatly simplify your code because you only have to deal with ONE variable, not 16.
C++ Syntax (Toggle Plain Text)
Last edited by Ancient Dragon; Oct 20th, 2007 at 6:54 pm.
Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
Hi,
I've wrote all code using using matrices and the problem happens even more often.
I've tried it in another compiler (DEV-C++) and with this one program just doesn't run.
I've wrote all code using using matrices and the problem happens even more often.
I've tried it in another compiler (DEV-C++) and with this one program just doesn't run.
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Join Date: Jul 2007
Posts: 54
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Junior Poster in Training
can you post the corrected code??
i.e. the code after using matrices??
i.e. the code after using matrices??
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Originally Posted by Srynx 
Hi,
I've wrote all code using using matrices and the problem happens even more often.
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Originally Posted by Srynx
I've tried it in another compiler (DEV-C++) and with this one program just doesn't run.
Start over and slow. Write a small piece of the code, compile, test. Then add the next step, compile, test. Repeat until the program is finished...
Last edited by WaltP; Nov 3rd, 2007 at 2:21 pm.
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1) Never do today that which can be put off until tomorrow
2) Tomorrow never comes
1) Never do today that which can be put off until tomorrow
2) Tomorrow never comes
Hi,
here the corrected code:
In Dev the code compiles but when i run it nothing appears in MS-DOS
Thank u 4 help
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can you post the corrected code??
i.e. the code after using matrices??
C++ Syntax (Toggle Plain Text)
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What happens with Dev? Crashes? Doesn't compile?
Thank u 4 help
Hi,
I've used sum of all members of a box, row or column should be sudoku's dimensions factorial.
However I get a runtime error when I run the code.
How to solve it?
Thank you
c++ Syntax (Toggle Plain Text)
However I get a runtime error when I run the code.
How to solve it?
Thank you
Last edited by Ancient Dragon; Dec 8th, 2007 at 6:51 pm. Reason: add line numbers -- this is not a rules violation of any kind, just edited for convenience
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Join Date: Jun 2007
Posts: 2,462
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Please post the error that you get.
I shot the sheriff....but I didn't shoot the deputy
I just get an error at runtime when I input how many columns or rows are there in the sudoku. Windows XP warn me to send an errors report and I only know it's a dwin.exe error.
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Join Date: Aug 2005
Posts: 15,171
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It doesn't run because it won't compiler -- you have some syntax errors in the code you posted. For example, line 21 is wrong because MAX_ROWS and MAX_COLUMNS have not been defined.
>>"How many columns or rows there are in the sudoku?\n";
Well, which are you asking us to input -- the number of columns or the number of rows? If you want both then you have to have an integer for each one because they can not be both in the same integer, like this:
>>"How many columns or rows there are in the sudoku?\n";
Well, which are you asking us to input -- the number of columns or the number of rows? If you want both then you have to have an integer for each one because they can not be both in the same integer, like this:
C++ Syntax (Toggle Plain Text)
Last edited by Ancient Dragon; Dec 8th, 2007 at 6:57 pm.
Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
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